The TDP should have it's own thread since it's the only month long challenge.
Tour de Primes 2025, 00:00:01 UTC Feb 1st to 23:59:59 Feb 28th UTC.
From the TDP page:
Tour de Primes 2025Welcome to the 16th annual Tour de Primes. 2 is the first prime number...and the only even prime. This makes it unique among prime numbers. Therefore, February (UTC) is declared Prime month...being the 2nd month of the year. :) And there's no better way to pay homage to a prime number than to go out and find one. :) More precisely, a
Top 5000 prime.
For the month of February, an informal competition is offered. There are no challenge points to be gained... just a simple rare jersey at the end of the month to add to your badge list. No pressure or stress other than what you put on yourself. :)
For 2025, we're bringing back the badges introduced in 2018:
Red Jersey -- discoverer of largest prime
Yellow Jersey -- prime count leader (tiebreaker will be prime score)
Green Jersey -- points (prime score) leader
Polk-a-dot Jersey -- on the 19th of February we'll have a "Mountain Stage" and award the Polk-a-dot Jersey to the one who finds the most primes on that day (tiebreaker will be prime score for that day).
Prime badge -- awarded to everyone who finds an eligible prime during the month of February. This is a counter badge, so if you find more than one prime it will show how many you've found, up to 99.
Mega prime badge -- awarded to everyone who finds a mega prime during February. This is a counter badge.
Mountain Stage prime badge -- awarded to everyone who finds an eligible prime during the Mountain Stage. This is a counter badge.
Mountain Stage mega prime badge -- awarded to everyone who finds a mega prime during the Mountain Stage. This is a counter badge.
Results will be available at
http://www.primegrid.com/challenge/tdp_2025.php.
Note that this year all subprojects that find single primes (EXCEPT GFN-16), are eligible for the 2025 Tour de Primes. PPSE is included, even if it is pushed out of T5K later in February. GFN-16 is NOT eligible because it is too small to be reported to T5K. AP27, and SR5 Sieve are NOT eligible, since they do not find single primes.Currently, the fastest opportunities to find
Top 5000 primes is with the PPSE (LLR), and GFN-17 projects. Of course, should someone find a prime in the larger searches, this would certainly give them a good shot at the green or red jerseys.
To participate in BOINC PPSE, GFN-17, or any other eligible LLR or Genefer project, all you have to do is select it in your
PrimeGrid preferences. AP27 sequences are not reportable at T5K, so are not eligible for Tour de Primes.
Sieve projects don't find primes, so SR5-Sieve can't find anything in TdP.
Good Luck, have fun, and enjoy! :D